Introduction

In this report, we extract information about published JOSS papers and generate graphics as well as a summary table that can be downloaded and used for further analyses.

Load required R packages

suppressPackageStartupMessages({
  library(tibble)
  library(rcrossref)
  library(dplyr)
  library(tidyr)
  library(ggplot2)
  library(lubridate)
  library(gh)
  library(purrr)
  library(jsonlite)
  library(DT)
  library(plotly)
  library(citecorp)
  library(readr)
})
## Keep track of the source of each column
source_track <- c()

## Determine whether to add a caption with today's date to the (non-interactive) plots
add_date_caption <- TRUE
if (add_date_caption) {
  dcap <- lubridate::today()
} else {
  dcap <- ""
}
## Read archived version of summary data frame, to use for filling in 
## information about software repositories (due to limit on API requests)
## Sort by the date when software repo info was last obtained
papers_archive <- readRDS(gzcon(url("https://github.com/openjournals/joss-analytics/blob/gh-pages/joss_submission_analytics.rds?raw=true"))) %>%
  dplyr::arrange(!is.na(repo_info_obtained), repo_info_obtained)

## Similarly for citation analysis, to avoid having to pull down the 
## same information multiple times
citations_archive <- readr::read_delim(
  url("https://github.com/openjournals/joss-analytics/blob/gh-pages/joss_submission_citations.tsv?raw=true"),
  col_types = cols(.default = "c"), col_names = TRUE,
  delim = "\t")

Collect information about papers

Pull down papers and citation info from Crossref

We get the information about published JOSS papers from Crossref, using the rcrossref R package. This package is also used to extract citation counts.

## Fetch JOSS papers from Crossref
## Only 1000 papers at the time can be pulled down
lim <- 1000
papers <- rcrossref::cr_works(filter = c(issn = "2475-9066"), 
                              limit = lim)$data
i <- 1
while (nrow(papers) == i * lim) {
  papers <- dplyr::bind_rows(
    papers, 
    rcrossref::cr_works(filter = c(issn = "2475-9066"), 
                        limit = lim, offset = i * lim)$data)
  i <- i + 1
}
papers <- papers %>%
  dplyr::filter(type == "journal-article") 

## A few papers don't have DOIs - generate them from the URL
noaltid <- which(is.na(papers$alternative.id))
papers$alternative.id[noaltid] <- gsub("http://dx.doi.org/", "",
                                       papers$url[noaltid])

## Get citation info from Crossref and merge with paper details
cit <- rcrossref::cr_citation_count(doi = papers$alternative.id)
papers <- papers %>% dplyr::left_join(
  cit %>% dplyr::rename(citation_count = count), 
  by = c("alternative.id" = "doi")
)

## Remove one duplicated paper
papers <- papers %>% dplyr::filter(alternative.id != "10.21105/joss.00688")

source_track <- c(source_track, 
                  structure(rep("crossref", ncol(papers)), 
                            names = colnames(papers)))

Pull down info from Whedon API

For each published paper, we use the Whedon API to get information about pre-review and review issue numbers, corresponding software repository etc.

whedon <- list()
p <- 1
a <- jsonlite::fromJSON(
  url(paste0("https://joss.theoj.org/papers/published.json?page=", p)),
  simplifyDataFrame = FALSE
)
while (length(a) > 0) {
  whedon <- c(whedon, a)
  p <- p + 1
  a <- jsonlite::fromJSON(
    url(paste0("https://joss.theoj.org/papers/published.json?page=", p)),
    simplifyDataFrame = FALSE
  )
}

whedon <- do.call(dplyr::bind_rows, lapply(whedon, function(w) {
  data.frame(api_title = w$title, 
             api_state = w$state,
             editor = paste(w$metadata$paper$editor, collapse = ","),
             reviewers = paste(w$reviewers, collapse = ","),
             nbr_reviewers = length(w$reviewers),
             repo_url = w$repository_url,
             review_issue_id = w$review_issue_id,
             doi = w$doi,
             prereview_issue_id = ifelse(!is.null(w$meta_review_issue_id),
                                         w$meta_review_issue_id, NA_integer_),
             languages = paste(w$metadata$paper$languages, collapse = ","),
             archive_doi = w$metadata$paper$archive_doi)
}))

papers <- papers %>% dplyr::left_join(whedon, by = c("alternative.id" = "doi"))

source_track <- c(source_track, 
                  structure(rep("whedon", length(setdiff(colnames(papers),
                                                         names(source_track)))), 
                            names = setdiff(colnames(papers), names(source_track))))

Combine with info from GitHub issues

From each pre-review and review issue, we extract information about review times and assigned labels.

## Pull down info on all issues in the joss-reviews repository
issues <- gh("/repos/openjournals/joss-reviews/issues", 
             .limit = 5000, state = "all")
## From each issue, extract required information
iss <- do.call(dplyr::bind_rows, lapply(issues, function(i) {
  data.frame(title = i$title, 
             number = i$number,
             state = i$state,
             opened = i$created_at,
             closed = ifelse(!is.null(i$closed_at),
                             i$closed_at, NA_character_),
             ncomments = i$comments,
             labels = paste(setdiff(
               vapply(i$labels, getElement, 
                      name = "name", character(1L)),
               c("review", "pre-review", "query-scope", "paused")),
               collapse = ","))
}))

## Split into REVIEW, PRE-REVIEW, and other issues (the latter category 
## is discarded)
issother <- iss %>% dplyr::filter(!grepl("\\[PRE REVIEW\\]", title) & 
                                    !grepl("\\[REVIEW\\]", title))
dim(issother)
## [1] 128   7
head(issother)
##                                                                                                                                                                        title
## 1                                                                                                                                                         Testing auto close
## 2                                                                                                                                                         Testing auto close
## 3                  Installation instructions: Is there a clearly-stated list of dependencies? Ideally these should be handled with an automated package management solution.
## 4 Community guidelines: Are there clear guidelines for third parties wishing to 1) Contribute to the software 2) Report issues or problems with the software 3) Seek support
## 5                                                             Substantial scholarly effort: Does this submission meet the scope eligibility described in the JOSS guidelines
## 6                                                 Example usage: Do the authors include examples of how to use the software (ideally to solve real-world analysis problems).
##   number  state               opened               closed ncomments labels
## 1   4216 closed 2022-03-02T10:12:55Z 2022-03-02T10:12:57Z         1       
## 2   4215 closed 2022-03-02T10:09:55Z 2022-03-02T10:12:37Z         1       
## 3   4214 closed 2022-03-01T07:04:08Z 2022-03-01T12:08:41Z         2       
## 4   4213 closed 2022-03-01T02:17:42Z 2022-03-01T02:18:58Z         1       
## 5   4150 closed 2022-02-10T19:53:34Z 2022-02-10T19:53:37Z         1       
## 6   4141 closed 2022-02-08T21:42:46Z 2022-02-08T21:42:49Z         1
## For REVIEW issues, generate the DOI of the paper from the issue number
getnbrzeros <- function(s) {
  paste(rep(0, 5 - nchar(s)), collapse = "")
}
issrev <- iss %>% dplyr::filter(grepl("\\[REVIEW\\]", title)) %>%
  dplyr::mutate(nbrzeros = purrr::map_chr(number, getnbrzeros)) %>%
  dplyr::mutate(alternative.id = paste0("10.21105/joss.", 
                                        nbrzeros,
                                        number)) %>%
  dplyr::select(-nbrzeros) %>% 
  dplyr::mutate(title = gsub("\\[REVIEW\\]: ", "", title)) %>%
  dplyr::rename_at(vars(-alternative.id), ~ paste0("review_", .))
## For pre-review and review issues, respectively, get the number of 
## issues closed each month, and the number of those that have the 
## 'rejected' label
review_rejected <- iss %>% 
  dplyr::filter(grepl("\\[REVIEW\\]", title)) %>% 
  dplyr::filter(!is.na(closed)) %>%
  dplyr::mutate(closedmonth = lubridate::floor_date(as.Date(closed), "month")) %>%
  dplyr::group_by(closedmonth) %>%
  dplyr::summarize(nbr_issues_closed = length(labels),
                   nbr_rejections = sum(grepl("rejected", labels))) %>%
  dplyr::mutate(itype = "review")

prereview_rejected <- iss %>% 
  dplyr::filter(grepl("\\[PRE REVIEW\\]", title)) %>% 
  dplyr::filter(!is.na(closed)) %>%
  dplyr::mutate(closedmonth = lubridate::floor_date(as.Date(closed), "month")) %>%
  dplyr::group_by(closedmonth) %>%
  dplyr::summarize(nbr_issues_closed = length(labels),
                   nbr_rejections = sum(grepl("rejected", labels))) %>%
  dplyr::mutate(itype = "pre-review")

all_rejected <- dplyr::bind_rows(review_rejected, prereview_rejected)
## For PRE-REVIEW issues, add information about the corresponding REVIEW 
## issue number
isspre <- iss %>% dplyr::filter(grepl("\\[PRE REVIEW\\]", title)) %>%
  dplyr::filter(!grepl("withdrawn", labels)) %>%
  dplyr::filter(!grepl("rejected", labels))
## Some titles have multiple pre-review issues. In these cases, keep the latest
isspre <- isspre %>% dplyr::arrange(desc(number)) %>% 
  dplyr::filter(!duplicated(title)) %>% 
  dplyr::mutate(title = gsub("\\[PRE REVIEW\\]: ", "", title)) %>%
  dplyr::rename_all(~ paste0("prerev_", .))

papers <- papers %>% dplyr::left_join(issrev, by = "alternative.id") %>% 
  dplyr::left_join(isspre, by = c("prereview_issue_id" = "prerev_number")) %>%
  dplyr::mutate(prerev_opened = as.Date(prerev_opened),
                prerev_closed = as.Date(prerev_closed),
                review_opened = as.Date(review_opened),
                review_closed = as.Date(review_closed)) %>% 
  dplyr::mutate(days_in_pre = prerev_closed - prerev_opened,
                days_in_rev = review_closed - review_opened,
                to_review = !is.na(review_opened))

source_track <- c(source_track, 
                  structure(rep("joss-github", length(setdiff(colnames(papers),
                                                              names(source_track)))), 
                            names = setdiff(colnames(papers), names(source_track))))

Add information from software repositories

## Reorder so that software repositories that were interrogated longest 
## ago are checked first
tmporder <- order(match(papers$alternative.id, papers_archive$alternative.id),
                  na.last = FALSE)
software_urls <- papers$repo_url[tmporder]
is_github <- grepl("github", software_urls)
length(is_github)
## [1] 1591
sum(is_github)
## [1] 1510
software_urls[!is_github]
##  [1] "https://www.idpoisson.fr/fullswof/"                                    
##  [2] "https://www.idpoisson.fr/fullswof/"                                    
##  [3] "https://www.idpoisson.fr/fullswof/"                                    
##  [4] "https://www.idpoisson.fr/fullswof/"                                    
##  [5] "https://ts-gitlab.iup.uni-heidelberg.de/dorie/dorie"                   
##  [6] "https://bitbucket.org/orionmhdteam/orion2_release1/src/master/"        
##  [7] "https://gitlab.inria.fr/bramas/tbfmm"                                  
##  [8] "https://ts-gitlab.iup.uni-heidelberg.de/utopia/utopia"                 
##  [9] "https://bitbucket.org/meg/cbcbeat"                                     
## [10] "https://gitlab.com/fduchate/predihood"                                 
## [11] "https://gitlab.com/myqueue/myqueue"                                    
## [12] "https://gitlab.com/mmartin-lagarde/exonoodle-exoplanets/-/tree/master/"
## [13] "https://gitlab.com/pyFBS/pyFBS"                                        
## [14] "https://gitlab.com/ffaucher/hawen"                                     
## [15] "https://gitlab.com/cerfacs/batman"                                     
## [16] "https://bitbucket.org/manuela_s/hcp/"                                  
## [17] "https://gitlab.com/jason-rumengan/pyarma"                              
## [18] "https://savannah.nongnu.org/projects/complot/"                         
## [19] "https://gitlab.com/libreumg/dataquier.git"                             
## [20] "https://bitbucket.org/hammurabicode/hamx"                              
## [21] "https://gitlab.com/gdetor/genetic_alg"                                 
## [22] "https://ts-gitlab.iup.uni-heidelberg.de/utopia/dantro"                 
## [23] "http://mutabit.com/repos.fossil/grafoscopio/"                          
## [24] "https://bitbucket.org/cardosan/brightway2-temporalis"                  
## [25] "https://gitlab.com/manchester_qbi/manchester_qbi_public/madym_cxx/"    
## [26] "https://gitlab.inria.fr/miet/miet"                                     
## [27] "https://gricad-gitlab.univ-grenoble-alpes.fr/ttk/spam/"                
## [28] "https://gitlab.com/emd-dev/emd"                                        
## [29] "https://gitlab.ethz.ch/holukas/dyco-dynamic-lag-compensation"          
## [30] "https://git.rwth-aachen.de/ants/sensorlab/imea"                        
## [31] "https://gitlab.com/remram44/taguette"                                  
## [32] "https://bitbucket.org/clhaley/Multitaper.jl"                           
## [33] "https://earth.bsc.es/gitlab/wuruchi/autosubmitreact"                   
## [34] "https://gitlab.com/vibes-developers/vibes"                             
## [35] "https://gitlab.com/marinvaders/marinvaders"                            
## [36] "https://gitlab.gwdg.de/mpievolbio-it/crbhits"                          
## [37] "https://bitbucket.org/rram/dvrlib/src/joss/"                           
## [38] "https://gitlab.com/dlr-dw/ontocode"                                    
## [39] "https://gitlab.com/project-dare/dare-platform"                         
## [40] "https://gitlab.com/picos-api/picos"                                    
## [41] "https://gitlab.com/sails-dev/sails"                                    
## [42] "https://framagit.org/GustaveCoste/eldam"                               
## [43] "https://bitbucket.org/mpi4py/mpi4py-fft"                               
## [44] "https://bitbucket.org/basicsums/basicsums"                             
## [45] "https://gitlab.kitware.com/LBM/lattice-boltzmann-solver"               
## [46] "https://bitbucket.org/sciencecapsule/sciencecapsule"                   
## [47] "https://gitlab.com/eidheim/Simple-Web-Server"                          
## [48] "https://bitbucket.org/cdegroot/wediff"                                 
## [49] "https://gitlab.com/toposens/public/ros-packages"                       
## [50] "https://bitbucket.org/glotzer/rowan"                                   
## [51] "https://gitlab.inria.fr/azais/treex"                                   
## [52] "https://gitlab.com/cracklet/cracklet.git"                              
## [53] "https://gitlab.com/QComms/cqptoolkit"                                  
## [54] "https://gitlab.com/moorepants/skijumpdesign"                           
## [55] "https://gitlab.com/LMSAL_HUB/aia_hub/aiapy"                            
## [56] "https://bitbucket.org/likask/mofem-cephas"                             
## [57] "https://gitlab.com/davidtourigny/dynamic-fba"                          
## [58] "https://gitlab.com/dlr-ve/autumn/"                                     
## [59] "https://gitlab.inria.fr/mosaic/bvpy"                                   
## [60] "https://bitbucket.org/miketuri/perl-spice-sim-seus/"                   
## [61] "https://bitbucket.org/ocellarisproject/ocellaris"                      
## [62] "https://gitlab.com/materials-modeling/wulffpack"                       
## [63] "https://sourceforge.net/p/mcapl/mcapl_code/ci/master/tree/"            
## [64] "https://bitbucket.org/cmutel/brightway2"                               
## [65] "https://gitlab.com/cosmograil/PyCS3"                                   
## [66] "https://bitbucket.org/berkeleylab/esdr-pygdh/"                         
## [67] "https://git.iws.uni-stuttgart.de/tools/frackit"                        
## [68] "https://bitbucket.org/dolfin-adjoint/pyadjoint"                        
## [69] "https://gitlab.com/tesch1/cppduals"                                    
## [70] "https://gitlab.com/energyincities/besos/"                              
## [71] "https://gitlab.com/geekysquirrel/bigx"                                 
## [72] "https://gitlab.com/gims-developers/gims"                               
## [73] "https://gitlab.com/celliern/scikit-fdiff/"                             
## [74] "https://bitbucket.org/dghoshal/frieda"                                 
## [75] "https://bitbucket.org/mituq/muq2.git"                                  
## [76] "https://gitlab.com/datafold-dev/datafold/"                             
## [77] "https://bitbucket.org/cloopsy/android/"                                
## [78] "https://c4science.ch/source/tamaas/"                                   
## [79] "https://gitlab.com/ampere2/metalwalls"                                 
## [80] "https://doi.org/10.17605/OSF.IO/3DS6A"                                 
## [81] "https://gitlab.com/costrouc/pysrim"
df <- do.call(dplyr::bind_rows, lapply(software_urls[is_github], function(u) {
  u0 <- gsub("^http://", "https://", gsub("\\.git$", "", gsub("/$", "", u)))
  if (grepl("/tree/", u0)) {
    u0 <- strsplit(u0, "/tree/")[[1]][1]
  }
  if (grepl("/blob/", u0)) {
    u0 <- strsplit(u0, "/blob/")[[1]][1]
  }
  info <- try({
    gh(gsub("(https://)?(www.)?github.com/", "/repos/", u0))
  })
  languages <- try({
    gh(paste0(gsub("(https://)?(www.)?github.com/", "/repos/", u0), "/languages"), 
       .limit = 500)
  })
  topics <- try({
    gh(paste0(gsub("(https://)?(www.)?github.com/", "/repos/", u0), "/topics"), 
       .accept = "application/vnd.github.mercy-preview+json", .limit = 500)
  })
  contribs <- try({
    gh(paste0(gsub("(https://)?(www.)?github.com/", "/repos/", u0), "/contributors"), 
       .limit = 500)
  })
  if (!is(info, "try-error") && length(info) > 1) {
    if (!is(contribs, "try-error")) {
      if (length(contribs) == 0) {
        repo_nbr_contribs <- repo_nbr_contribs_2ormore <- NA_integer_
      } else {
        repo_nbr_contribs <- length(contribs)
        repo_nbr_contribs_2ormore <- sum(vapply(contribs, function(x) x$contributions >= 2, NA_integer_))
        if (is.na(repo_nbr_contribs_2ormore)) {
          print(contribs)
        }
      }
    } else {
      repo_nbr_contribs <- repo_nbr_contribs_2ormore <- NA_integer_
    }
    
    if (!is(languages, "try-error")) {
      if (length(languages) == 0) {
        repolang <- ""
      } else {
        repolang <- paste(paste(names(unlist(languages)), 
                                unlist(languages), sep = ":"), collapse = ",")
      }
    } else {
      repolang <- ""
    }
    
    if (!is(topics, "try-error")) {
      if (length(topics$names) == 0) {
        repotopics <- ""
      } else {
        repotopics <- paste(unlist(topics$names), collapse = ",")
      }
    } else {
      repotopics <- ""
    }
    
    data.frame(repo_url = u, 
               repo_created = info$created_at,
               repo_updated = info$updated_at,
               repo_pushed = info$pushed_at,
               repo_nbr_stars = info$stargazers_count,
               repo_language = ifelse(!is.null(info$language),
                                      info$language, NA_character_),
               repo_languages_bytes = repolang,
               repo_topics = repotopics,
               repo_license = ifelse(!is.null(info$license),
                                     info$license$key, NA_character_),
               repo_nbr_contribs = repo_nbr_contribs,
               repo_nbr_contribs_2ormore = repo_nbr_contribs_2ormore
    )
  } else {
    NULL
  }
})) %>%
  dplyr::mutate(repo_created = as.Date(repo_created),
                repo_updated = as.Date(repo_updated),
                repo_pushed = as.Date(repo_pushed)) %>%
  dplyr::distinct() %>%
  dplyr::mutate(repo_info_obtained = lubridate::today())
stopifnot(length(unique(df$repo_url)) == length(df$repo_url))
dim(df)

## For papers not in df (i.e., for which we didn't get a valid response
## from the GitHub API query), use information from the archived data frame
dfarchive <- papers_archive %>% 
  dplyr::select(colnames(df)[colnames(df) %in% colnames(papers_archive)]) %>%
  dplyr::filter(!(repo_url %in% df$repo_url))
df <- dplyr::bind_rows(df, dfarchive)

papers <- papers %>% dplyr::left_join(df, by = "repo_url")

source_track <- c(source_track, 
                  structure(rep("sw-github", length(setdiff(colnames(papers),
                                                            names(source_track)))), 
                            names = setdiff(colnames(papers), names(source_track))))

Clean up a bit

## Convert publication date to Date format
## Add information about the half year (H1, H2) of publication
## Count number of authors
papers <- papers %>% dplyr::select(-reference, -license, -link) %>%
  dplyr::mutate(published.date = as.Date(published.print)) %>% 
  dplyr::mutate(
    halfyear = paste0(year(published.date), 
                      ifelse(month(published.date) <= 6, "H1", "H2"))
  ) %>% dplyr::mutate(
    halfyear = factor(halfyear, 
                      levels = paste0(rep(sort(unique(year(published.date))), 
                                          each = 2), c("H1", "H2")))
  ) %>% dplyr::mutate(nbr_authors = vapply(author, function(a) nrow(a), NA_integer_))
papers <- papers %>% dplyr::distinct()

source_track <- c(source_track, 
                  structure(rep("cleanup", length(setdiff(colnames(papers),
                                                          names(source_track)))), 
                            names = setdiff(colnames(papers), names(source_track))))

Tabulate number of missing values

In some cases, fetching information from (e.g.) the GitHub API fails for a subset of the publications. There are also other reasons for missing values (for example, the earliest submissions do not have an associated pre-review issue). The table below lists the number of missing values for each of the variables in the data frame.

DT::datatable(
  data.frame(variable = colnames(papers),
             nbr_missing = colSums(is.na(papers))) %>%
    dplyr::mutate(source = source_track[variable]),
  escape = FALSE, rownames = FALSE, 
  filter = list(position = 'top', clear = FALSE),
  options = list(scrollX = TRUE)
)

Number of published papers per month and year

ggplot(papers %>% 
         dplyr::mutate(pubmonth = lubridate::floor_date(published.date, "month")) %>%
         dplyr::group_by(pubmonth) %>%
         dplyr::summarize(npub = n()), 
       aes(x = factor(pubmonth), y = npub)) + 
  geom_bar(stat = "identity") + theme_minimal() + 
  labs(x = "", y = "Number of published papers per month", caption = dcap) + 
  theme(axis.title = element_text(size = 15),
        axis.text.x = element_text(angle = 90, hjust = 1, vjust = 0.5))

ggplot(papers %>% 
         dplyr::mutate(pubyear = lubridate::year(published.date)) %>%
         dplyr::group_by(pubyear) %>%
         dplyr::summarize(npub = n()), 
       aes(x = factor(pubyear), y = npub)) + 
  geom_bar(stat = "identity") + theme_minimal() + 
  labs(x = "", y = "Number of published papers per year", caption = dcap) + 
  theme(axis.title = element_text(size = 15),
        axis.text.x = element_text(angle = 90, hjust = 1, vjust = 0.5))

The plots below illustrate the fraction of pre-review and review issues closed during each month that have the ‘rejected’ label attached.

ggplot(all_rejected, 
       aes(x = factor(closedmonth), y = nbr_rejections/nbr_issues_closed)) + 
  geom_bar(stat = "identity") + 
  theme_minimal() + 
  facet_wrap(~ itype, ncol = 1) + 
  labs(x = "Month of issue closing", y = "Fraction of issues rejected",
       caption = dcap) + 
  theme(axis.title = element_text(size = 15),
        axis.text.x = element_text(angle = 90, hjust = 1, vjust = 0.5))

Citation distribution

Papers with 20 or more citations are grouped in the “>=20” category.

ggplot(papers %>% 
         dplyr::mutate(citation_count = replace(citation_count,
                                                citation_count >= 20, ">=20")) %>%
         dplyr::mutate(citation_count = factor(citation_count, 
                                               levels = c(0:20, ">=20"))) %>%
         dplyr::group_by(citation_count) %>%
         dplyr::tally(),
       aes(x = citation_count, y = n)) + 
  geom_bar(stat = "identity") + 
  theme_minimal() + 
  labs(x = "Crossref citation count", y = "Number of publications", caption = dcap)

Most cited papers

The table below sorts the JOSS papers in decreasing order by the number of citations in Crossref.

DT::datatable(
  papers %>% 
    dplyr::mutate(url = paste0("<a href='", url, "' target='_blank'>", 
                               url,"</a>")) %>% 
    dplyr::arrange(desc(citation_count)) %>% 
    dplyr::select(title, url, published.date, citation_count),
  escape = FALSE,
  filter = list(position = 'top', clear = FALSE),
  options = list(scrollX = TRUE)
)

Citation count vs time since publication

plotly::ggplotly(
  ggplot(papers, aes(x = published.date, y = citation_count, label = title)) + 
    geom_point(alpha = 0.5) + theme_bw() + scale_y_sqrt() + 
    geom_smooth() + 
    labs(x = "Date of publication", y = "Crossref citation count", caption = dcap) + 
    theme(axis.title = element_text(size = 15)),
  tooltip = c("label", "x", "y")
)

Power law of citation count within each half year

Here, we plot the citation count for all papers published within each half year, sorted in decreasing order.

ggplot(papers %>% dplyr::group_by(halfyear) %>% 
         dplyr::arrange(desc(citation_count)) %>%
         dplyr::mutate(idx = seq_along(citation_count)), 
       aes(x = idx, y = citation_count)) + 
  geom_point(alpha = 0.5) + 
  facet_wrap(~ halfyear, scales = "free") + 
  theme_bw() + 
  labs(x = "Index", y = "Crossref citation count", caption = dcap)

Pre-review/review time over time

In these plots we investigate whether the time a submission spends in the pre-review or review stage has changed over time.

ggplot(papers, aes(x = prerev_opened, y = as.numeric(days_in_pre))) + 
  geom_point() + geom_smooth() + theme_bw() + 
  labs(x = "Date of pre-review opening", y = "Number of days in pre-review", 
       caption = dcap) + 
  theme(axis.title = element_text(size = 15))

ggplot(papers, aes(x = review_opened, y = as.numeric(days_in_rev))) + 
  geom_point() + geom_smooth() + theme_bw() + 
  labs(x = "Date of review opening", y = "Number of days in review", 
       caption = dcap) + 
  theme(axis.title = element_text(size = 15))

Languages

Next, we consider the languages used by the submissions, both as reported by Whedon and based on the information encoded in available GitHub repositories (for the latter, we also record the number of bytes of code written in each language). Note that a given submission can use multiple languages.

## Language information from Whedon
sspl <- strsplit(papers$languages, ",")
all_languages <- unique(unlist(sspl))
langs <- do.call(dplyr::bind_rows, lapply(all_languages, function(l) {
  data.frame(language = l,
             nbr_submissions_Whedon = sum(vapply(sspl, function(v) l %in% v, 0)))
}))

## Language information from GitHub software repos
a <- lapply(strsplit(papers$repo_languages_bytes, ","), function(w) strsplit(w, ":"))
a <- a[sapply(a, length) > 0]
langbytes <- as.data.frame(t(as.data.frame(a))) %>% 
  setNames(c("language", "bytes")) %>%
  dplyr::mutate(bytes = as.numeric(bytes)) %>%
  dplyr::filter(!is.na(language)) %>%
  dplyr::group_by(language) %>%
  dplyr::summarize(nbr_bytes_GitHub = sum(bytes),
                   nbr_repos_GitHub = length(bytes)) %>%
  dplyr::arrange(desc(nbr_bytes_GitHub))

langs <- dplyr::full_join(langs, langbytes, by = "language")
ggplot(langs %>% dplyr::arrange(desc(nbr_submissions_Whedon)) %>%
         dplyr::filter(nbr_submissions_Whedon > 10) %>%
         dplyr::mutate(language = factor(language, levels = language)),
       aes(x = language, y = nbr_submissions_Whedon)) + 
  geom_bar(stat = "identity") + 
  theme_bw() + 
  theme(axis.text.x = element_text(angle = 90, hjust = 1, vjust = 0.5)) + 
  labs(x = "", y = "Number of submissions", caption = dcap) + 
  theme(axis.title = element_text(size = 15))

DT::datatable(
  langs %>% dplyr::arrange(desc(nbr_bytes_GitHub)),
  escape = FALSE,
  filter = list(position = 'top', clear = FALSE),
  options = list(scrollX = TRUE)
)
ggplot(langs, aes(x = nbr_repos_GitHub, y = nbr_bytes_GitHub)) + 
  geom_point() + scale_x_log10() + scale_y_log10() + geom_smooth() + 
  theme_bw() + 
  labs(x = "Number of repos using the language",
       y = "Total number of bytes of code\nwritten in the language", 
       caption = dcap) + 
  theme(axis.title = element_text(size = 15))

Association between number of citations and number of stars of the GitHub repo

ggplotly(
  ggplot(papers, aes(x = citation_count, y = repo_nbr_stars,
                     label = title)) + 
    geom_point(alpha = 0.5) + scale_x_sqrt() + scale_y_sqrt() + 
    theme_bw() + 
    labs(x = "Crossref citation count", y = "Number of stars, GitHub repo", 
         caption = dcap) + 
    theme(axis.title = element_text(size = 15)),
  tooltip = c("label", "x", "y")
)

Distribution of time between GitHub repo creation and JOSS submission

ggplot(papers, aes(x = as.numeric(prerev_opened - repo_created))) +
  geom_histogram(bins = 50) + 
  theme_bw() + 
  labs(x = "Time (days) from repo creation to JOSS pre-review start", 
       caption = dcap) + 
  theme(axis.title = element_text(size = 15))

Distribution of time between JOSS acceptance and last commit

ggplot(papers, aes(x = as.numeric(repo_pushed - review_closed))) +
  geom_histogram(bins = 50) + 
  theme_bw() + 
  labs(x = "Time (days) from closure of JOSS review to most recent commit in repo",
       caption = dcap) + 
  theme(axis.title = element_text(size = 15)) + 
  facet_wrap(~ year(published.date), scales = "free_y")

Number of authors per paper

List the papers with the largest number of authors, and display the distribution of the number of authors per paper, for papers with at most 20 authors.

## Papers with largest number of authors
papers %>% dplyr::arrange(desc(nbr_authors)) %>% 
  dplyr::select(title, published.date, url, nbr_authors) %>%
  as.data.frame() %>% head(10)
##                                                                                                                          title
## 1                                                                                    SunPy: A Python package for Solar Physics
## 2                                                        ENZO: An Adaptive Mesh Refinement Code for Astrophysics (Version 2.6)
## 3  The Pencil Code, a modular MPI code for partial differential equations and particles: multipurpose and multiuser-maintained
## 4                                                     GRChombo: An adaptable numerical relativity code for fundamental physics
## 5                                                                                       PyBIDS: Python tools for BIDS datasets
## 6                                       DataLad: distributed system for joint management of code, data, and their relationship
## 7                                                                            Chaste: Cancer, Heart and Soft Tissue Environment
## 8                                                                           spam: Software for Practical Analysis of Materials
## 9                                                       SNEWPY: A Data Pipeline from Supernova Simulations to Neutrino Signals
## 10                                                                                       VIVO: a system for research discovery
##    published.date                                   url nbr_authors
## 1      2020-02-14 http://dx.doi.org/10.21105/joss.01832         124
## 2      2019-10-03 http://dx.doi.org/10.21105/joss.01636          55
## 3      2021-02-21 http://dx.doi.org/10.21105/joss.02807          38
## 4      2021-12-10 http://dx.doi.org/10.21105/joss.03703          32
## 5      2019-08-12 http://dx.doi.org/10.21105/joss.01294          31
## 6      2021-07-01 http://dx.doi.org/10.21105/joss.03262          31
## 7      2020-03-13 http://dx.doi.org/10.21105/joss.01848          29
## 8      2020-07-13 http://dx.doi.org/10.21105/joss.02286          27
## 9      2021-11-27 http://dx.doi.org/10.21105/joss.03772          26
## 10     2019-07-26 http://dx.doi.org/10.21105/joss.01182          25
nbins <- max(papers$nbr_authors[papers$nbr_authors <= 20])
ggplot(papers %>% dplyr::filter(nbr_authors <= 20),
  aes(x = nbr_authors)) + 
  geom_histogram(bins = nbins, fill = "lightgrey", color = "grey50") + 
  theme_bw() + 
  facet_wrap(~ year(published.date), scales = "free_y") + 
  theme(axis.title = element_text(size = 15)) + 
  labs(x = "Number of authors",
       y = "Number of publications with\na given number of authors", 
       caption = dcap)

ggplot(papers %>% 
         dplyr::mutate(nbr_authors = replace(nbr_authors, nbr_authors > 5, ">5")) %>%
         dplyr::mutate(nbr_authors = factor(nbr_authors, levels = c("1", "2", "3", 
                                                                    "4", "5", ">5"))) %>%
         dplyr::mutate(year = year(published.date)) %>%
         dplyr::mutate(year = factor(year)) %>%
         dplyr::group_by(year, nbr_authors, .drop = FALSE) %>%
         dplyr::summarize(n = n()) %>%
         dplyr::mutate(freq = n/sum(n)) %>%
         dplyr::mutate(year = as.integer(as.character(year))), 
       aes(x = year, y = freq, fill = nbr_authors)) + geom_area() + 
  theme_minimal() + 
  scale_fill_brewer(palette = "Set1", name = "Number of\nauthors", 
                    na.value = "grey") + 
  theme(axis.title = element_text(size = 15)) + 
  labs(x = "Year", y = "Fraction of submissions", caption = dcap)

Number of authors vs number of contributors to the GitHub repo

Note that points are slightly jittered to reduce the overlap.

plotly::ggplotly(
  ggplot(papers, aes(x = nbr_authors, y = repo_nbr_contribs_2ormore, label = title)) + 
    geom_abline(slope = 1, intercept = 0) + 
    geom_jitter(width = 0.05, height = 0.05, alpha = 0.5) + 
    # geom_point(alpha = 0.5) + 
    theme_bw() + 
    scale_x_sqrt() + scale_y_sqrt() + 
    labs(x = "Number of authors", 
         y = "Number of contributors\nwith at least 2 commits", 
         caption = dcap) + 
    theme(axis.title = element_text(size = 15)),
  tooltip = c("label", "x", "y")
)
## Warning: `gather_()` was deprecated in tidyr 1.2.0.
## Please use `gather()` instead.
## This warning is displayed once every 8 hours.
## Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.

Number of reviewers per paper

Submissions associated with rOpenSci and pyOpenSci are not considered here, since they are not explicitly reviewed at JOSS.

ggplot(papers %>%
         dplyr::filter(!grepl("rOpenSci|pyOpenSci", prerev_labels)) %>%
         dplyr::mutate(year = year(published.date)),
       aes(x = nbr_reviewers)) + geom_bar() + 
  facet_wrap(~ year) + theme_bw() + 
  labs(x = "Number of reviewers", y = "Number of submissions", caption = dcap)

Most active reviewers

Submissions associated with rOpenSci and pyOpenSci are not considered here, since they are not explicitly reviewed at JOSS.

reviewers <- papers %>% 
  dplyr::filter(!grepl("rOpenSci|pyOpenSci", prerev_labels)) %>%
  dplyr::mutate(year = year(published.date)) %>%
  dplyr::select(reviewers, year) %>%
  tidyr::separate_rows(reviewers, sep = ",")

## Most active reviewers
DT::datatable(
  reviewers %>% dplyr::group_by(reviewers) %>%
    dplyr::summarize(nbr_reviews = length(year),
                     timespan = paste(unique(c(min(year), max(year))), 
                                      collapse = " - ")) %>%
    dplyr::arrange(desc(nbr_reviews)),
  escape = FALSE, rownames = FALSE, 
  filter = list(position = 'top', clear = FALSE),
  options = list(scrollX = TRUE)
)

Number of papers per editor and year

ggplot(papers %>% 
         dplyr::mutate(year = year(published.date),
                       `r/pyOpenSci` = factor(
                         grepl("rOpenSci|pyOpenSci", prerev_labels),
                         levels = c("TRUE", "FALSE"))), 
       aes(x = editor)) + geom_bar(aes(fill = `r/pyOpenSci`)) + 
  theme_bw() + facet_wrap(~ year, ncol = 1) + 
  scale_fill_manual(values = c(`TRUE` = "grey65", `FALSE` = "grey35")) + 
  theme(axis.text.x = element_text(angle = 90, hjust = 1, vjust = 0.5)) + 
  labs(x = "Editor", y = "Number of submissions", caption = dcap)

Distribution of software repo licenses

all_licenses <- sort(unique(papers$repo_license))
license_levels = c(grep("apache", all_licenses, value = TRUE),
                   grep("bsd", all_licenses, value = TRUE),
                   grep("mit", all_licenses, value = TRUE),
                   grep("gpl", all_licenses, value = TRUE),
                   grep("mpl", all_licenses, value = TRUE))
license_levels <- c(license_levels, setdiff(all_licenses, license_levels))
ggplot(papers %>% 
         dplyr::mutate(repo_license = factor(repo_license, 
                                             levels = license_levels)),
       aes(x = repo_license)) +
  geom_bar() + 
  theme_bw() + 
  labs(x = "Software license", y = "Number of submissions", caption = dcap) + 
  theme(axis.title = element_text(size = 15),
        axis.text.x = element_text(angle = 90, hjust = 1, vjust = 0.5)) + 
  facet_wrap(~ year(published.date), scales = "free_y")

## For plots below, replace licenses present in less 
## than 2.5% of the submissions by 'other'
tbl <- table(papers$repo_license)
to_replace <- names(tbl[tbl <= 0.025 * nrow(papers)])
ggplot(papers %>% 
         dplyr::mutate(year = year(published.date)) %>%
         dplyr::mutate(repo_license = replace(repo_license, 
                                              repo_license %in% to_replace,
                                              "other")) %>%
         dplyr::mutate(year = factor(year), 
                       repo_license = factor(
                         repo_license, 
                         levels = license_levels[license_levels %in% repo_license]
                       )) %>%
         dplyr::group_by(year, repo_license, .drop = FALSE) %>%
         dplyr::count() %>%
         dplyr::mutate(year = as.integer(as.character(year))), 
       aes(x = year, y = n, fill = repo_license)) + geom_area() + 
  theme_minimal() + 
  scale_fill_brewer(palette = "Set1", name = "Software\nlicense", 
                    na.value = "grey") + 
  theme(axis.title = element_text(size = 15)) + 
  labs(x = "Year", y = "Number of submissions", caption = dcap)

ggplot(papers %>% 
         dplyr::mutate(year = year(published.date)) %>%
         dplyr::mutate(repo_license = replace(repo_license, 
                                              repo_license %in% to_replace,
                                              "other")) %>%
         dplyr::mutate(year = factor(year), 
                       repo_license = factor(
                         repo_license, 
                         levels = license_levels[license_levels %in% repo_license]
                       )) %>%
         dplyr::group_by(year, repo_license, .drop = FALSE) %>%
         dplyr::summarize(n = n()) %>%
         dplyr::mutate(freq = n/sum(n)) %>%
         dplyr::mutate(year = as.integer(as.character(year))), 
       aes(x = year, y = freq, fill = repo_license)) + geom_area() + 
  theme_minimal() + 
  scale_fill_brewer(palette = "Set1", name = "Software\nlicense", 
                    na.value = "grey") + 
  theme(axis.title = element_text(size = 15)) + 
  labs(x = "Year", y = "Fraction of submissions", caption = dcap)

Most common GitHub repo topics

a <- unlist(strsplit(papers$repo_topics, ","))
a <- a[!is.na(a)]
topicfreq <- table(a)

colors <- viridis::viridis(100)
set.seed(1234)
wordcloud::wordcloud(
  names(topicfreq), sqrt(topicfreq), min.freq = 1, max.words = 300,
  random.order = FALSE, rot.per = 0.05, use.r.layout = FALSE, 
  colors = colors, scale = c(10, 0.1), random.color = TRUE,
  ordered.colors = FALSE, vfont = c("serif", "plain")
)

DT::datatable(as.data.frame(topicfreq) %>% 
                dplyr::rename(topic = a, nbr_repos = Freq) %>%
                dplyr::arrange(desc(nbr_repos)),
  escape = FALSE, rownames = FALSE, 
  filter = list(position = 'top', clear = FALSE),
  options = list(scrollX = TRUE))

Citation analysis

Here, we take a more detailed look at the papers that cite JOSS papers, using data from the Open Citations Corpus.

Get citing papers for each submission

citations <- tryCatch({
  citecorp::oc_coci_cites(doi = papers$alternative.id) %>%
    dplyr::distinct() %>%
    dplyr::mutate(citation_info_obtained = as.character(lubridate::today()))
}, error = function(e) {
  NULL
})
dim(citations)
## [1] 15030     8
if (!is.null(citations)) {
  citations <- citations %>% 
    dplyr::filter(!(oci %in% citations_archive$oci))
  
  tmpj <- rcrossref::cr_works(dois = unique(citations$citing))$data %>%
    dplyr::select(contains("doi"), contains("container.title"), contains("issn"),
                  contains("type"), contains("publisher"), contains("prefix"))
  citations <- citations %>% dplyr::left_join(tmpj, by = c("citing" = "doi"))
  
  ## bioRxiv preprints don't have a 'container.title' or 'issn', but we'll assume 
  ## that they can be 
  ## identified from the prefix 10.1101 - set the container.title 
  ## for these records manually; we may or may not want to count these
  ## (would it count citations twice, both preprint and publication?)
  citations$container.title[citations$prefix == "10.1101"] <- "bioRxiv"
  
  ## JOSS is represented by 'The Journal of Open Source Software' as well as 
  ## 'Journal of Open Source Software'
  citations$container.title[citations$container.title == 
                              "Journal of Open Source Software"] <- 
    "The Journal of Open Source Software"
  
  ## Remove real self citations (cited DOI = citing DOI)
  citations <- citations %>% dplyr::filter(cited != citing)
  
  ## Merge with the archive
  citations <- dplyr::bind_rows(citations, citations_archive)
} else {
  citations <- citations_archive
  if (is.null(citations[["citation_info_obtained"]])) {
    citations$citation_info_obtained <- NA_character_
  }
}

citations$citation_info_obtained[is.na(citations$citation_info_obtained)] <- 
  "2021-08-11"

write.table(citations, file = "joss_submission_citations.tsv",
            row.names = FALSE, col.names = TRUE, sep = "\t", quote = FALSE)

Summary statistics

## Latest successful update of new citation data
max(as.Date(citations$citation_info_obtained))
## [1] "2022-02-09"
## Number of JOSS papers with >0 citations included in this collection
length(unique(citations$cited))
## [1] 920
## Number of JOSS papers with >0 citations according to Crossref
length(which(papers$citation_count > 0))
## [1] 1003
## Number of citations from Open Citations Corpus vs Crossref
df0 <- papers %>% dplyr::select(doi, citation_count) %>%
  dplyr::full_join(citations %>% dplyr::group_by(cited) %>%
                     dplyr::tally() %>%
                     dplyr::mutate(n = replace(n, is.na(n), 0)),
                   by = c("doi" = "cited"))
## Total citation count Crossref
sum(df0$citation_count, na.rm = TRUE)
## [1] 18169
## Total citation count Open Citations Corpus
sum(df0$n, na.rm = TRUE)
## [1] 15104
## Ratio of total citation count Open Citations Corpus/Crossref
sum(df0$n, na.rm = TRUE)/sum(df0$citation_count, na.rm = TRUE)
## [1] 0.8313061
ggplot(df0, aes(x = citation_count, y = n)) + 
  geom_abline(slope = 1, intercept = 0) + 
  geom_point(size = 3, alpha = 0.5) + 
  labs(x = "Crossref citation count", y = "Open Citations Corpus citation count",
       caption = dcap) + 
  theme_bw()

## Zoom in
ggplot(df0, aes(x = citation_count, y = n)) + 
  geom_abline(slope = 1, intercept = 0) + 
  geom_point(size = 3, alpha = 0.5) + 
  labs(x = "Crossref citation count", y = "Open Citations Corpus citation count",
       caption = dcap) + 
  theme_bw() + 
  coord_cartesian(xlim = c(0, 75), ylim = c(0, 75))

## Number of journals citing JOSS papers
length(unique(citations$container.title))
## [1] 3650
length(unique(citations$issn))
## [1] 3179

Most citing journals

topcit <- citations %>% dplyr::group_by(container.title) %>%
  dplyr::summarize(nbr_citations_of_joss_papers = length(cited),
                   nbr_cited_joss_papers = length(unique(cited)),
                   nbr_citing_papers = length(unique(citing)),
                   nbr_selfcitations_of_joss_papers = sum(author_sc == "yes"),
                   fraction_selfcitations = signif(nbr_selfcitations_of_joss_papers /
                     nbr_citations_of_joss_papers, digits = 3)) %>%
  dplyr::arrange(desc(nbr_cited_joss_papers))
DT::datatable(topcit,
  escape = FALSE, rownames = FALSE, 
  filter = list(position = 'top', clear = FALSE),
  options = list(scrollX = TRUE))
plotly::ggplotly(
  ggplot(topcit, aes(x = nbr_citations_of_joss_papers, y = nbr_cited_joss_papers,
                     label = container.title)) + 
    geom_abline(slope = 1, intercept = 0, linetype = "dashed", color = "grey") + 
    geom_point(size = 3, alpha = 0.5) + 
    theme_bw() + 
    labs(caption = dcap, x = "Number of citations of JOSS papers",
         y = "Number of cited JOSS papers")
)
plotly::ggplotly(
  ggplot(topcit, aes(x = nbr_citations_of_joss_papers, y = nbr_cited_joss_papers,
                     label = container.title)) + 
    geom_abline(slope = 1, intercept = 0, linetype = "dashed", color = "grey") + 
    geom_point(size = 3, alpha = 0.5) + 
    theme_bw() + 
    coord_cartesian(xlim = c(0, 100), ylim = c(0, 50)) + 
    labs(caption = dcap, x = "Number of citations of JOSS papers",
         y = "Number of cited JOSS papers")
)
write.table(topcit, file = "joss_submission_citations_byjournal.tsv",
            row.names = FALSE, col.names = TRUE, sep = "\t", quote = FALSE)

Save object

The tibble object with all data collected above is serialized to a file that can be downloaded and reused.

head(papers) %>% as.data.frame()
##        alternative.id                     container.title    created  deposited
## 1 10.21105/joss.02809     Journal of Open Source Software 2021-03-31 2021-03-31
## 2 10.21105/joss.03705     Journal of Open Source Software 2021-10-27 2021-10-27
## 3 10.21105/joss.00634     Journal of Open Source Software 2019-01-05 2019-11-17
## 4 10.21105/joss.00012 The Journal of Open Source Software 2016-05-16 2017-10-24
## 5 10.21105/joss.00596     Journal of Open Source Software 2018-05-11 2018-05-11
## 6 10.21105/joss.00847     Journal of Open Source Software 2018-09-29 2018-09-29
##   published.print                 doi    indexed      issn issue     issued
## 1      2021-03-31 10.21105/joss.02809 2021-12-11 2475-9066    59 2021-03-31
## 2      2021-10-27 10.21105/joss.03705 2021-12-11 2475-9066    66 2021-10-27
## 3      2019-01-05 10.21105/joss.00634 2021-12-11 2475-9066    33 2019-01-05
## 4      2016-05-16 10.21105/joss.00012 2021-12-11 2475-9066     1 2016-05-16
## 5      2018-05-11 10.21105/joss.00596 2021-12-19 2475-9066    25 2018-05-11
## 6      2018-09-28 10.21105/joss.00847 2021-12-18 2475-9066    29 2018-09-28
##   member page   prefix        publisher score   source reference.count
## 1   8722 2809 10.21105 The Open Journal     0 Crossref              27
## 2   8722 3705 10.21105 The Open Journal     0 Crossref              31
## 3   8722  634 10.21105 The Open Journal     0 Crossref               6
## 4   8722   12 10.21105 The Open Journal     0 Crossref               4
## 5   8722  596 10.21105 The Open Journal     0 Crossref               5
## 6   8722  847 10.21105 The Open Journal     0 Crossref               9
##   references.count is.referenced.by.count
## 1               27                      1
## 2               31                      0
## 3                6                      0
## 4                4                      4
## 5                5                      2
## 6                9                      2
##                                                                      title
## 1 dymos: A Python package for optimal control of multidisciplinary systems
## 2                   serp: An R package for smoothing in ordinal regression
## 3 genieR: An R package for inference of demographic history of phylogenies
## 4          mst_clustering: Clustering via Euclidean Minimum Spanning Trees
## 5                   Nostril: A nonsense string evaluator written in Python
## 6         sdmbench: R package for benchmarking species distribution models
##              type                                   url volume
## 1 journal-article http://dx.doi.org/10.21105/joss.02809      6
## 2 journal-article http://dx.doi.org/10.21105/joss.03705      6
## 3 journal-article http://dx.doi.org/10.21105/joss.00634      4
## 4 journal-article http://dx.doi.org/10.21105/joss.00012      1
## 5 journal-article http://dx.doi.org/10.21105/joss.00596      3
## 6 journal-article http://dx.doi.org/10.21105/joss.00847      3
##   short.container.title
## 1                  JOSS
## 2                  JOSS
## 3                  JOSS
## 4                  JOSS
## 5                  JOSS
## 6                  JOSS
##                                                                                                                                                                                                               author
## 1 http://orcid.org/0000-0001-9864-4928, http://orcid.org/0000-0002-7506-7360, NA, NA, FALSE, FALSE, NA, NA, Robert, Justin, Kaushik, Ted, Falck, Gray, Ponnapalli, Wright, first, additional, additional, additional
## 2                                                                                                                                                    http://orcid.org/0000-0003-2572-0023, FALSE, Ejike, Ugba, first
## 3  http://orcid.org/0000-0003-3644-7114, http://orcid.org/0000-0003-3653-4592, http://orcid.org/0000-0002-5207-9879, FALSE, FALSE, FALSE, Fei, Bethany, Simon, Xiang, Dearlove, Frost, first, additional, additional
## 4                                                                                                                                               http://orcid.org/0000-0002-9623-3401, FALSE, Jake, VanderPlas, first
## 5                                                                                                                                                 http://orcid.org/0000-0001-9105-5960, FALSE, Michael, Hucka, first
## 6                                                                                                                                                 http://orcid.org/0000-0001-5068-4234, FALSE, Boyan, Angelov, first
##   citation_count
## 1              1
## 2              0
## 3              0
## 4              4
## 5              2
## 6              2
##                                                                  api_title
## 1 dymos: A Python package for optimal control of multidisciplinary systems
## 2                   serp: An R package for smoothing in ordinal regression
## 3 genieR: An R package for inference of demographic history of phylogenies
## 4          mst_clustering: Clustering via Euclidean Minimum Spanning Trees
## 5                   Nostril: A nonsense string evaluator written in Python
## 6         sdmbench: R package for benchmarking species distribution models
##   api_state     editor                   reviewers nbr_reviewers
## 1  accepted @dpsanders             @goerz,@thowell             2
## 2  accepted   @Bisaloo @bernardsilenou,@wesleyburr             2
## 3  accepted    @pjotrp                     @pboesu             1
## 4  accepted     @arfon                  @nicoguaro             1
## 5  accepted   @jakevdp               @desilinguist             1
## 6  accepted   @karthik           @sckott,@goldingn             2
##                                   repo_url review_issue_id prereview_issue_id
## 1        https://github.com/OpenMDAO/dymos            2809               2648
## 2        https://github.com/ejikeugba/serp            3705               3657
## 3    https://github.com/xiangfstats/GenieR             634                536
## 4 http://github.com/jakevdp/mst_clustering              12                 NA
## 5        https://github.com/casics/nostril             596                574
## 6 https://github.com/boyanangelov/sdmbench             847                823
##                              languages                            archive_doi
## 1                           Python,TeX https://doi.org/10.5281/zenodo.4646412
## 2                                TeX,R https://doi.org/10.5281/zenodo.5596864
## 3                            R,TeX,C++ https://doi.org/10.5281/zenodo.2532305
## 4 Jupyter Notebook,Makefile,Python,TeX http://dx.doi.org/10.5281/zenodo.50995
## 5                     Python,CSS,Shell      http://dx.doi.org/10.22002/D1.935
## 6                            R,CSS,TeX https://doi.org/10.5281/zenodo.1436376
##                                                               review_title
## 1 dymos: A Python package for optimal control of multidisciplinary systems
## 2                   serp: An R package for smoothing in ordinal regression
## 3 genieR: An R package for inference of demographic history of phylogenies
## 4                    mst_clustering: Clustering via Minimum Spanning Trees
## 5                   Nostril: A nonsense string evaluator written in Python
## 6      sdmbench: An R Package for Benchmarking Species Distribution Models
##   review_number review_state review_opened review_closed review_ncomments
## 1          2809       closed    2020-11-01    2021-03-31              114
## 2          3705       closed    2021-09-09    2021-10-27               51
## 3           634       closed    2018-03-18    2019-01-05               36
## 4            12       closed    2016-05-05    2016-05-16               18
## 5           596       closed    2018-02-27    2018-05-11               27
## 6           847       closed    2018-07-25    2018-09-29               41
##                                          review_labels
## 1 accepted,TeX,Shell,Python,recommend-accept,published
## 2            accepted,TeX,R,recommend-accept,published
## 3                  accepted,recommend-accept,published
## 4                  accepted,recommend-accept,published
## 5                  accepted,recommend-accept,published
## 6                  accepted,recommend-accept,published
##                                                               prerev_title
## 1 dymos: A Python package for optimal control of multidisciplinary systems
## 2                   serp: An R package for smoothing in ordinal regression
## 3 genieR: An R package for inference of demographic history of phylogenies
## 4                                                                     <NA>
## 5                   Nostril: A nonsense string evaluator written in Python
## 6      sdmbench: An R Package for Benchmarking Species Distribution Models
##   prerev_state prerev_opened prerev_closed prerev_ncomments    prerev_labels
## 1       closed    2020-09-08    2020-11-01               44 TeX,Shell,Python
## 2       closed    2021-08-25    2021-09-09               50            TeX,R
## 3       closed    2018-01-16    2018-04-23               18        TeX,R,C++
## 4         <NA>          <NA>          <NA>               NA             <NA>
## 5       closed    2018-02-08    2018-02-27               18 Shell,Python,CSS
## 6       closed    2018-07-13    2018-07-25               13        TeX,R,CSS
##   days_in_pre days_in_rev to_review repo_created repo_updated repo_pushed
## 1     54 days    150 days      TRUE   2018-02-13   2022-01-17  2022-02-02
## 2     15 days     48 days      TRUE   2020-12-03   2022-01-28  2022-02-23
## 3     97 days    293 days      TRUE   2016-10-03   2019-04-13  2019-03-21
## 4     NA days     11 days      TRUE   2015-10-28   2021-09-18  2016-05-16
## 5     19 days     73 days      TRUE   2017-11-28   2022-01-21  2021-10-14
## 6     12 days     66 days      TRUE   2018-06-22   2021-11-06  2020-12-12
##   repo_nbr_stars    repo_language
## 1             98           Python
## 2              1                R
## 3              1                R
## 4             69 Jupyter Notebook
## 5            112           Python
## 6             15                R
##                                         repo_languages_bytes
## 1                                   Python:2773843,TeX:12293
## 2                                                    R:94037
## 3                                 R:50207,C++:14544,TeX:1942
## 4 Jupyter Notebook:416862,Python:18113,TeX:1418,Makefile:249
## 5                         Python:114840,CSS:11554,Shell:3165
## 6                                   R:68955,TeX:10997,CSS:42
##                                                                                                                                              repo_topics
## 1                                                                         nasa,optimal-control,trajectory-optimization,pseudospectral,openmdao,co-design
## 2                                        regularization-techniques,ordinal-regression,proportional-odds-regression,categorical-data,penalized-regression
## 3                                                                                                                                                       
## 4                                                                                                                                                       
## 5 identifiers,detector,nonsense,gibberish,source-code,mining-software-repositories,identifier-string,nonsense-string-evaluator,inference,text-processing
## 6                                                                                                            sdm,ecology,machine-learning,benchmarking,r
##   repo_license repo_nbr_contribs repo_nbr_contribs_2ormore repo_info_obtained
## 1   apache-2.0                19                        12         2022-02-16
## 2         <NA>                 2                         2         2022-03-02
## 3          mit                 2                         2         2022-02-16
## 4 bsd-2-clause                 1                         1         2022-02-02
## 5     lgpl-2.1                 1                         1         2022-02-02
## 6          mit                 1                         1         2022-03-02
##   published.date halfyear nbr_authors
## 1     2021-03-31   2021H1           4
## 2     2021-10-27   2021H2           1
## 3     2019-01-05   2019H1           3
## 4     2016-05-16   2016H1           1
## 5     2018-05-11   2018H1           1
## 6     2018-09-28   2018H2           1
saveRDS(papers, file = "joss_submission_analytics.rds")

To read the current version of this file directly from GitHub, use the following code:

papers <- readRDS(gzcon(url("https://github.com/openjournals/joss-analytics/blob/gh-pages/joss_submission_analytics.rds?raw=true")))

Session info

sessionInfo()
## R version 4.1.2 (2021-11-01)
## Platform: x86_64-apple-darwin17.0 (64-bit)
## Running under: macOS Big Sur 10.16
## 
## Matrix products: default
## BLAS:   /Library/Frameworks/R.framework/Versions/4.1/Resources/lib/libRblas.0.dylib
## LAPACK: /Library/Frameworks/R.framework/Versions/4.1/Resources/lib/libRlapack.dylib
## 
## locale:
## [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
## 
## attached base packages:
## [1] stats     graphics  grDevices utils     datasets  methods   base     
## 
## other attached packages:
##  [1] readr_2.1.2        citecorp_0.3.0     plotly_4.10.0      DT_0.21           
##  [5] jsonlite_1.8.0     purrr_0.3.4        gh_1.3.0           lubridate_1.8.0   
##  [9] ggplot2_3.3.5      tidyr_1.2.0        dplyr_1.0.8        rcrossref_1.1.0.99
## [13] tibble_3.1.6      
## 
## loaded via a namespace (and not attached):
##  [1] viridis_0.6.2      httr_1.4.2         sass_0.4.0         splines_4.1.2     
##  [5] bit64_4.0.5        vroom_1.5.7        viridisLite_0.4.0  bslib_0.3.1       
##  [9] shiny_1.7.1        highr_0.9          triebeard_0.3.0    urltools_1.7.3    
## [13] yaml_2.3.5         lattice_0.20-45    pillar_1.7.0       glue_1.6.2        
## [17] digest_0.6.29      RColorBrewer_1.1-2 promises_1.2.0.1   colorspace_2.0-3  
## [21] Matrix_1.3-4       htmltools_0.5.2    httpuv_1.6.5       plyr_1.8.6        
## [25] pkgconfig_2.0.3    httpcode_0.3.0     xtable_1.8-4       gitcreds_0.1.1    
## [29] scales_1.1.1       whisker_0.4        later_1.3.0        tzdb_0.2.0        
## [33] mgcv_1.8-38        generics_0.1.2     farver_2.1.0       ellipsis_0.3.2    
## [37] withr_2.5.0        lazyeval_0.2.2     cli_3.2.0          magrittr_2.0.2    
## [41] crayon_1.5.0       mime_0.12          evaluate_0.15      fansi_1.0.2       
## [45] nlme_3.1-153       xml2_1.3.3         tools_4.1.2        data.table_1.14.2 
## [49] hms_1.1.1          lifecycle_1.0.1    stringr_1.4.0      munsell_0.5.0     
## [53] compiler_4.1.2     jquerylib_0.1.4    rlang_1.0.2        grid_4.1.2        
## [57] htmlwidgets_1.5.4  crosstalk_1.2.0    miniUI_0.1.1.1     labeling_0.4.2    
## [61] rmarkdown_2.12     gtable_0.3.0       curl_4.3.2         fauxpas_0.5.0     
## [65] R6_2.5.1           gridExtra_2.3      knitr_1.37         fastmap_1.1.0     
## [69] bit_4.0.4          utf8_1.2.2         stringi_1.7.6      parallel_4.1.2    
## [73] crul_1.2.0         Rcpp_1.0.8         vctrs_0.3.8        wordcloud_2.6     
## [77] tidyselect_1.1.2   xfun_0.30